{"id":606,"date":"2014-01-14T09:56:00","date_gmt":"2014-01-14T08:56:00","guid":{"rendered":"https:\/\/kids.esa.int\/caves_-_finding_rare_life_in_dark_places\/"},"modified":"2026-10-08T00:30:11","modified_gmt":"2026-10-07T22:30:11","slug":"caves_-_finding_rare_life_in_dark_places","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fr\/caves_-_finding_rare_life_in_dark_places\/","title":{"rendered":"GROTTES \u2013 \u00c0 la d\u00e9couverte de formes de vie rares dans les lieux obscurs"},"content":{"rendered":"<div class=\"lede\">\n<p>L\u2019an dernier, dans le cadre de l\u2019exp\u00e9rience Catch that bug!, des \u00e9coliers du monde entier ont \u00e9t\u00e9 invit\u00e9s \u00e0 explorer les profondeurs de la Terre \u00e0 la recherche de bestioles comme des scarab\u00e9es, des cloportes et autres vers de terre. Des astronautes exp\u00e9riment\u00e9s, qui prenaient part au programme d\u2019entra\u00eenement souterrain CAVES de l\u2019ESA dans un r\u00e9seau souterrain de Sardaigne, ont eux aussi apport\u00e9 leur contribution \u00e0 cette exp\u00e9rience.<\/p>\n<\/div>\n<p>Pendant la mission CAVES 2013, l\u2019astronaute de l\u2019ESA Paolo Nespoli a ainsi collabor\u00e9 avec le biologiste Paolo Marcia pour explorer une partie de la grotte de Sos Jocos. Malgr\u00e9 les conditions d\u2019obscurit\u00e9 permanente, les deux Italiens ont d\u00e9couvert 25 esp\u00e8ces dans l\u2019\u00e9quivalent d\u2019un carr\u00e9 de seulement 20 cm de longueur. Au total, 124 bestioles ont \u00e9t\u00e9 recens\u00e9es, ce qui \u00e9quivaudrait \u00e0 une densit\u00e9 de population de 3 milliards de cr\u00e9atures par kilom\u00e8tre carr\u00e9 !<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1024\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2014\/01\/Life_found_during_the_CAVES_2013_campaign\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2014\/01\/life_found_during_the_caves_2013_campaign\/17896645-2-eng-GB\/Life_found_during_the_CAVES_2013_campaign.jpg\" alt=\"Life found during the CAVES 2013 campaign\"><figcaption>Formes de vie d\u00e9couvertes lors de la campagne CAVES 2013<\/figcaption><\/figure>\n<p>Parmi les 25 esp\u00e8ces identifi\u00e9es, on compte notamment un type particulier de cloporte qui n\u2019avait encore jamais \u00e9t\u00e9 observ\u00e9 dans cette grotte. D\u00e9couverte en 2009, cette esp\u00e8ce de cloporte est la seule de son genre \u00e0 pouvoir \u00e9voluer aussi bien au-dessus qu\u2019en dessous du sol.<\/p>\n<p>L\u2019\u00e9quipe scientifique de CAVES 2013 a \u00e9galement trouv\u00e9 une forme de scarab\u00e9e end\u00e9mique aux r\u00e9seaux souterrains de Sardaigne. Comme les biologistes en ont pr\u00e9lev\u00e9 trois sp\u00e9cimens, ils vont pouvoir effectuer des tests ADN afin de comprendre o\u00f9 cette cr\u00e9ature se situe dans l\u2019arbre de l\u2019\u00e9volution du vivant.<\/p>\n<p>Un cloporte de 4 mm de long, appartenant \u00e0 une esp\u00e8ce d\u00e9couverte par Paolo Marcia il y a trois ans, a par ailleurs \u00e9t\u00e9 identifi\u00e9. Gr\u00e2ce au travail des astronautes, cet animal sera prochainement gratifi\u00e9 d\u2019un nom scientifique.<\/p>\n<p>Observez les deux Paolo ex\u00e9cuter des exp\u00e9riences, et t\u00e9l\u00e9chargez des documents p\u00e9dagogiques ! Qui sait ce que vous pourriez trouver sous vos pieds ?<\/p><\/p>","protected":false},"excerpt":{"rendered":"<p>Last year, schoolchildren were invited to dig up the Earth in search of creepy-crawlies such as beetles, woodlice and worms, during the Catch that bug! experiment. At the same time, [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2014\/01\/the_caves_team_during_a_verification_procedure_of_a_speleobiology_experiment\/18250102-2-eng-GB\/The_CAVES_team_during_a_verification_procedure_of_a_speleobiology_experiment.jpg","esa_banner_description":"The CAVES team during a verification procedure of a speleobiology experiment","esa_banner_credit":"ESA - V. 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